Backblaze Clean Up Unfinished Large Files

arazzo: 1.0.1
info:
  title: Backblaze Clean Up Unfinished Large Files
  summary: Authorize, list unfinished large files in a bucket, then cancel the first stalled upload found.
  description: >-
    A housekeeping chain that reclaims storage left behind by abandoned
    multi-part uploads. The account is authorized,
    b2_list_unfinished_large_files enumerates large uploads that were started
    but never finished or cancelled, and when at least one is found the workflow
    branches to b2_cancel_large_file to delete the first stalled upload and its
    parts. The fileId of the first unfinished file flows directly into the
    cancel call. Every step spells out its request inline so the flow can be
    read and executed without opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: authorizationApi
  url: ../openapi/backblaze-authorization-api-openapi.yml
  type: openapi
- name: largeFilesApi
  url: ../openapi/backblaze-large-files-api-openapi.yml
  type: openapi
workflows:
- workflowId: cleanup-unfinished-large-files
  summary: Find an abandoned large upload in a bucket and cancel it.
  description: >-
    Authorizes the account, lists unfinished large files in the target bucket,
    and cancels the first one found to free its parts.
  inputs:
    type: object
    required:
    - bucketId
    properties:
      bucketId:
        type: string
        description: The bucket to scan for unfinished large file uploads.
  steps:
  - stepId: authorize
    description: Log in to the B2 API to obtain the authorization token.
    operationId: authorizeAccount
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      authorizationToken: $response.body#/authorizationToken
  - stepId: listUnfinished
    description: >-
      List large file uploads that have been started but not finished or
      cancelled in the target bucket.
    operationId: listUnfinishedLargeFiles
    requestBody:
      contentType: application/json
      payload:
        bucketId: $inputs.bucketId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      files: $response.body#/files
      firstUnfinishedFileId: $response.body#/files/0/fileId
    onSuccess:
    - name: unfinishedFound
      type: goto
      stepId: cancelLargeFile
      criteria:
      - context: $response.body
        condition: $.files.length > 0
        type: jsonpath
  - stepId: cancelLargeFile
    description: >-
      Cancel the first unfinished large file upload, deleting all of the parts
      that had been uploaded for it.
    operationId: cancelLargeFile
    requestBody:
      contentType: application/json
      payload:
        fileId: $steps.listUnfinished.outputs.firstUnfinishedFileId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      cancelledFileId: $response.body#/fileId
      cancelledFileName: $response.body#/fileName
  outputs:
    unfinishedFiles: $steps.listUnfinished.outputs.files
    cancelledFileId: $steps.cancelLargeFile.outputs.cancelledFileId